期刊
BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS
卷 1503, 期 1-2, 页码 69-82出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S0005-2728(00)00216-4
关键词
Fourier transform infrared spectroscopy; photosystem II; manganese cluster; tyrosyl radical; oxygen-evolving complex
资金
- NIGMS NIH HHS [GM37300] Funding Source: Medline
A number of molecularly specific models for the oxygen-evolving complex in photosystem II (PSII) and of manganese-substrate water intermediates that may occur in this process have been proposed recently. We summarize this work briefly. Fourier transform infrared techniques have emerged as fruitful tools to study the molecular structures of Yz and the manganese complex. We discuss recent work in which mid-IR (1000-2000 cm(-1)) methods have been used in this effort. The low-frequency IR region (<1000 cm(-1)) has been more difficult to access for technical reasons, but good progress has been made in overcoming these obstacles. We update recent low-frequency work on PSII and then present a detailed summary of relevant manganese model compounds that will be of importance in understanding the emerging biological data. (C) 2001 Elsevier Science B.V. All rights reserved.
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